JPS63278867A - Thermal print head - Google Patents
Thermal print headInfo
- Publication number
- JPS63278867A JPS63278867A JP11234987A JP11234987A JPS63278867A JP S63278867 A JPS63278867 A JP S63278867A JP 11234987 A JP11234987 A JP 11234987A JP 11234987 A JP11234987 A JP 11234987A JP S63278867 A JPS63278867 A JP S63278867A
- Authority
- JP
- Japan
- Prior art keywords
- film
- heating resistor
- glass film
- conductive glass
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 238000007639 printing Methods 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims abstract description 3
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000003068 static effect Effects 0.000 abstract description 8
- 239000005388 borosilicate glass Substances 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 abstract description 2
- ZFZQOKHLXAVJIF-UHFFFAOYSA-N zinc;boric acid;dihydroxy(dioxido)silane Chemical compound [Zn+2].OB(O)O.O[Si](O)([O-])[O-] ZFZQOKHLXAVJIF-UHFFFAOYSA-N 0.000 abstract 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000006866 deterioration Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000005355 lead glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/315—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material
- B41J2/32—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of heat to a heat sensitive printing or impression-transfer material using thermal heads
- B41J2/335—Structure of thermal heads
Landscapes
- Electronic Switches (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、サーマルプリントヘッドに係り、特に高品質
な印字、印画ドツトを高信頼性に得るに好適なヘッド構
造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a thermal print head, and particularly to a head structure suitable for obtaining high-quality prints and printed dots with high reliability.
従来のサーマルプリントヘッドは、特開昭６０−２１９
０７３号に記載の様に１発熱抵抗体の上に直接に導電性
のガラスからなる耐摩耗性の保護膜を形成して、印画時
に発生する静電気による発熱抵抗体の特性劣化を回避し
ている。The conventional thermal print head was developed by Japanese Patent Application Laid-Open No. 60-219.
As described in No. 073, a wear-resistant protective film made of conductive glass is formed directly on the heat generating resistor 1 to avoid deterioration of the properties of the heat generating resistor due to static electricity generated during printing. .
と記従来技術のサーマルプリントヘッドは、印画時に発
生する静電気が１発熱抵抗体を経由せずに放電できるよ
うな電気接続配線について、配慮がなされていなかった
。In the thermal print head of the prior art described above, no consideration was given to electrical connection wiring that would allow static electricity generated during printing to be discharged without passing through the heat generating resistor.
本発明の目的は、静電気耐性を改善し、サーマルプリン
トヘッドの印字、印画品質の信頼性を向上させる事にあ
る。An object of the present invention is to improve the resistance to static electricity and improve the reliability of printing and print quality of a thermal print head.
上記目的は、サーマルプリントヘッドの発熱抵抗体上に
、絶縁性ガラス層を介して耐摩耗性の導電性ガラス層を
形成して、更忙該導電性ガラス層がサーマルプリントヘ
ッドの電源配線パターンもしくは接地配線パターンに接
続することにより達成される。The above purpose is to form a wear-resistant conductive glass layer on the heat generating resistor of the thermal print head via an insulating glass layer, so that the conductive glass layer is connected to the power supply wiring pattern of the thermal print head or This is accomplished by connecting to a ground wiring pattern.
印字、印画する際忙、インクフィルムのベースフィルム
とサーマルプリントヘッドとが摺接し合って発生する静
電気は、発熱抵抗体上に位置させて設けた導電性ガラス
層を通って電源配線パターン（もしくは接地配線パター
ン）Ｋ流れ、発熱抵抗体を経由して放電することはない
。このため、発熱抵抗体が静電気によって特性劣化する
ことはな（なることｋなる。During printing, static electricity generated when the base film of the ink film and the thermal print head come into sliding contact with each other passes through the conductive glass layer placed on the heating resistor and connects to the power supply wiring pattern (or ground wiring). Pattern) K flows, and there is no discharge via the heating resistor. Therefore, the properties of the heating resistor will not deteriorate due to static electricity.
以下１本発明の一実施例を図面により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本実施例のサーマルプリントヘッドの要部平面
図、第２図は第１図のＡ−ＡＫおける断面図で、１はセ
ラミック等の絶縁材料からなる基板。FIG. 1 is a plan view of essential parts of the thermal print head of this embodiment, and FIG. 2 is a sectional view taken along line A-AK in FIG. 1, where 1 is a substrate made of an insulating material such as ceramic.
２はその表面に形成したグレーズ層である。このグレー
ズ層２の表面に全等の導電材料からなる端子電極３１
、３２を所定の間隔にて設置し、これら端子電極３を橋
絡するよ５に、抵抗ペーストを印刷焼成して発熱抵抗体
４を帯状に形成する。発熱抵抗体４は電源配線に接続す
るコモン側端子電極３１と隣り合う信号側端子電極３２
との間の抵抗体部分４Ａが１ドツトとして発熱作用をす
る。発熱抵抗体４の表面にホウケイ酸鉛系のガラスペー
ストを印刷焼成して絶縁性ガラス膜５を形成した後、こ
の絶縁性ガラス膜５表面とコモン側端子電極３１の露出
部αにかけて、ホウケイ酸鉛ガラスに酸化ルテニウムを
４％以上添加してなるガラスペーストを印刷焼成して導
電性ガラス膜６を形成してなるものである。また７はイ
ンクフィルムで、樹脂膜からなるベースフィルム８とそ
の表面忙塗布されているインク９とから構成される。１
０は受像紙、１１はプラテンである。信号側端子電極３
２に通電すれば、コモン側端子電極３１との間の抵抗体
部分４Ａが発熱し、この熱によりインクフィルム７上の
インク部分が昇華もしくは溶解して受像紙１０に転写さ
れる。2 is a glaze layer formed on the surface. A terminal electrode 31 made of a conductive material is provided on the surface of this glaze layer 2.
, 32 are installed at a predetermined interval, and a resistive paste is printed and fired to form a band-shaped heating resistor 4 so as to bridge these terminal electrodes 3. The heating resistor 4 has a signal side terminal electrode 32 adjacent to a common side terminal electrode 31 connected to the power supply wiring.
The resistor portion 4A between the dot and the dot generates heat. After printing and firing lead borosilicate glass paste on the surface of the heating resistor 4 to form an insulating glass film 5, borosilicate is applied over the surface of the insulating glass film 5 and the exposed portion α of the common side terminal electrode 31. The conductive glass film 6 is formed by printing and firing a glass paste made by adding 4% or more of ruthenium oxide to lead glass. Reference numeral 7 denotes an ink film, which is composed of a base film 8 made of a resin film and an ink 9 coated on its surface. 1
0 is a receiving paper, and 11 is a platen. Signal side terminal electrode 3
2, the resistor portion 4A between it and the common side terminal electrode 31 generates heat, and the ink portion on the ink film 7 is sublimated or melted by this heat and transferred to the image receiving paper 10.
印字印画時に導電性ガラス膜６とインクフィルム７０ベ
ースフイルム８とが摺接し合うので発生する静電気は、
導電性ガラス膜６とコモン側端子電極３１とを通して電
源配線に放電し１発熱抵抗体４を経て放電することはな
い。このため発熱抵抗体４は、抵抗値変化等の特性劣化
をきたすことなく、良好な印字、印画品質を維持するこ
とができる。Static electricity generated when the conductive glass film 6 and the ink film 70 base film 8 come into sliding contact with each other during printing is
It is discharged to the power supply wiring through the conductive glass film 6 and the common side terminal electrode 31, and is not discharged through the first heating resistor 4. Therefore, the heating resistor 4 can maintain good printing and print quality without causing characteristic deterioration such as a change in resistance value.
本発明によれば、発熱抵抗体の保護膜として。 According to the present invention, as a protective film for a heating resistor.
電源配線に接続する導電性のガラスを使用したので、保
護膜の帯電による発熱抵抗体の静電破壊は確実に防止で
き、従って発熱抵抗体の特性劣化による印字、印画時の
濃度ムラを防ぎ、印字印画品質を、従来よりも十分向上
させることができる効果を有する。By using conductive glass that connects to the power supply wiring, it is possible to reliably prevent electrostatic damage to the heating resistor due to charging of the protective film, thereby preventing uneven density during printing and printing due to deterioration of the characteristics of the heating resistor. This has the effect of sufficiently improving the print quality compared to the conventional method.
第１図は本発明の一実施例の要部平面図、第２図は第１
図のＡ−Ａ断面図である。
ｌ・・・基板、 ゛ ２・・・グレーズ層、３
１・・パコモン側端子電極、
３２・・・信号側端子電極、 ４・・・発熱抵抗体。
５・・・絶縁性ガラス膜、 ６・・・導電性ガラス膜、
７・・・インクフィルム、 ８・・・ベースフィルム。
９・・・インク部、１０・・・受像紙。
１１・・・プラテン。
、′−一
代理人弁理士 小 川 勝 男、゛
手続補正書（自発）
昭和６２ 年特許願第 １１２３４９ 号発明の名称
サーマルプリントヘッド補正をする者
１噂とｌＩ）ＩＩｌｇＡ 特許出願人名 称 （５
１０１株式会ｉ上 日 立 製 作 所代 理
人FIG. 1 is a plan view of essential parts of an embodiment of the present invention, and FIG.
It is an AA sectional view of the figure. l...Substrate, ゛2...Glaze layer, 3
1...Pacomon side terminal electrode, 32...Signal side terminal electrode, 4...Heating resistor. 5... Insulating glass film, 6... Conductive glass film,
7... Ink film, 8... Base film. 9... Ink section, 10... Receiving paper. 11...Platen. ,'-One Patent Attorney Katsuo Ogawa, ``Procedural Amendment (Spontaneous) Patent Application No. 112349 of 1988 Title of Invention Person Who Corrects Thermal Print Head 1 Rumor and II) IIlgA Name of Patent Applicant Name (5
101 I Co., Ltd. Hitachi Manufacturing Agent
Man
Claims (1)
表面を、絶縁性ガラス皮膜にて被覆した後、該絶縁性ガ
ラス皮膜上の少なくとも上記発熱抵抗体を被覆する領域
に耐摩耗性の導電性ガラス皮膜を被覆し、該導電性ガラ
ス皮膜は電源線もしくは接地線に接続してなることを特
徴とするサーマルプリントヘッド。 ２、導電性ガラス皮膜は、絶縁性ガラスに酸化ルテニウ
ム粉末を分散してなるものであることを特徴とする特許
請求の範囲第１項記載のサーマルプリントヘッド。[Claims] 1. After coating the surface of a heating resistor for printing provided on the surface of an insulating substrate with an insulating glass film, at least the heating resistor on the insulating glass film is coated. 1. A thermal print head characterized in that a region is coated with a wear-resistant conductive glass film, and the conductive glass film is connected to a power supply line or a ground line. 2. The thermal print head according to claim 1, wherein the conductive glass film is formed by dispersing ruthenium oxide powder in insulating glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234987A JPS63278867A (en) | 1987-05-11 | 1987-05-11 | Thermal print head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11234987A JPS63278867A (en) | 1987-05-11 | 1987-05-11 | Thermal print head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63278867A true JPS63278867A (en) | 1988-11-16 |
Family
ID=14584466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11234987A Pending JPS63278867A (en) | 1987-05-11 | 1987-05-11 | Thermal print head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63278867A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03175058A (en) * | 1989-09-08 | 1991-07-30 | Hitachi Ltd | Thick film type thermal recording head and recorder |
| JPH045941U (en) * | 1990-04-26 | 1992-01-20 | ||
| JPH0414661A (en) * | 1990-05-08 | 1992-01-20 | Sony Corp | Cassette loading mechanism |
| JPH0479646U (en) * | 1990-11-21 | 1992-07-10 | ||
| EP1057649A3 (en) * | 1999-05-31 | 2001-03-07 | Aoi Electronics Company Limited | Thermal head and method to manufacture thermal head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098338A (en) * | 1973-12-25 | 1975-08-05 | ||
| JPS61108567A (en) * | 1984-11-01 | 1986-05-27 | Fuji Xerox Co Ltd | Thermal head |
-
1987
- 1987-05-11 JP JP11234987A patent/JPS63278867A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098338A (en) * | 1973-12-25 | 1975-08-05 | ||
| JPS61108567A (en) * | 1984-11-01 | 1986-05-27 | Fuji Xerox Co Ltd | Thermal head |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03175058A (en) * | 1989-09-08 | 1991-07-30 | Hitachi Ltd | Thick film type thermal recording head and recorder |
| JPH045941U (en) * | 1990-04-26 | 1992-01-20 | ||
| JPH0414661A (en) * | 1990-05-08 | 1992-01-20 | Sony Corp | Cassette loading mechanism |
| JPH0479646U (en) * | 1990-11-21 | 1992-07-10 | ||
| EP1057649A3 (en) * | 1999-05-31 | 2001-03-07 | Aoi Electronics Company Limited | Thermal head and method to manufacture thermal head |
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